One site, multiple companies, one goal: working safely
In the construction sector, safety is never the result of chance. It is the product of organisation, communication and effective coordination between companies.
When multiple companies operate simultaneously on the same site, the risk is not only linked to individual work tasks. It is above all the result of interference between different activities: shared spaces, overlapping operational phases, shared installations.
A worker who doesn’t know what the colleague from the neighbouring company is doing is already a risk.
Why is coordination so important?
On a multi-company construction site, each company has its own procedures, its own pace, its own tools. Without effective coordination, these differences become sources of accidents.
The construction safety coordinator has precisely this role: to ensure that all companies work in a coherent, synchronised and safe manner. This is not a bureaucratic figure. It is the balancing point of the entire site.
The levers of effective coordination
- Health and Safety Plan updated and shared with all companies
- Regular coordination meetings before and during critical phases
- Clear communication on anticipated interference between work tasks
- Management of common areas : storage, circulation routes, shared installations
- Specific training on interference risks for all workers present on site
Stop-Work Policy: the right — and the duty — to stop everything
One of the most powerful Safety tools on a construction site is the Stop-Work Policy.
On site, anyone, regardless of their role or company, has the right and the duty to activate a Stop-Work when:
- Risks not covered in the safety plan arise
- Behaviours not in line with the Safety policy are observed
- Doubts arise about work tasks that could compromise the integrity of operators
Stopping work is not a failure. It is an act of collective responsibility. No deadline, no delivery delay is worth more than a person’s safety.
Interference risk: the most underestimated
Interference is the risk nobody wants to see. Each company focuses on its own work and forgets that the construction site is a shared space.
A crane rotating above an area where workers from another company are operating. A temporary power line crossing a transit route. A concrete pouring phase that had not been communicated to adjacent teams.
These scenarios are not exceptions. They are the daily reality of complex construction sites.
Conclusion
Coordinating does not mean controlling. It means building together a culture of Safety that goes beyond the boundaries of each individual company. Pre-Job Check forms and the Stop-Work Policy are not bureaucracy, they are the concrete tools that make the difference between a safe site and a preventable accident.
And on your sites, how do you manage coordination between companies?